隧道安全 meaning in English

tunnel safety

Transport department - tunnel safely guidelines
运输署-隧道安全守则
Tunnel safely guidelines
隧道安全守则
With the development of railway construction in china , more and more new multiple tracks are soon put into construction . because of topography and geology limit , nevv tunnel is close to existing tunnel , which frequently results in destruct existing tunnel structure and afifected safe run . these situations disturb safe construction of new tunnel , so it is necessary to research reliable construction technology of close - spaced tunnel
随着我国铁路建设事业的发展，越来越多的新建复线工程将投入建设，由于受地形地质条件等因素的限制，新建隧道与既有隧道之间设计距离较近，导致既有隧道结构破坏、影响运营安全的情况时有发生，也妨碍了新建隧道的安全施工，因此需要进行邻近既有隧道安全施工技术的研究。